Icon 16 oz Stainless Steel Tumbler vs Stainless Steel Mug: which is safer?
These two grade almost identically. Pick on price and preference; neither has a PFAS edge.
Thermos
Icon 16 oz Stainless Steel Tumbler
PFAS grade
A 95/100
Overall grade
B 87/100
Verdict
Buy
Hazard flags
⚑ 2
Material
Stainless steel interior, BPA-free plastic exterior
Confidence
82%
PossiblePlastic exterior degradation and microplastic shedding
PossibleSilicone gasket bacterial or mold growth
Thermos
Stainless Steel Mug
PFAS grade
A 95/100
Overall grade
B 87/100
Verdict
Buy
Hazard flags
⚑ 2
Material
stainless steel, no stated coating
Confidence
85%
PossibleSeam or lid leachables
PossibleBacterial growth in valve/seal areas
Both products run through the same public rubric: materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →
More insulated travel mugs: see the full ranking